ITHACA, N.Y. – Cornell University Professor of Communication and Information Science Jeffrey Hancock and Jamie Guillory, a Cornell doctoral student at the time (now at University of California San Francisco) analyzed results from previously conducted research by Facebook into emotional contagion among its users. Professor Hancock and Dr. Guillory did not participate in data collection and did not have access to user data. Their work was limited to initial discussions, analyzing the research results and working with colleagues from Facebook to prepare the peer-reviewed paper “Experimental Evidence of Massive-Scale Emotional Contagion through Social Networks,” published online June 2 in Proceedings of the National Academy of Science-Social Science.
Because the research was conducted independently by Facebook and Professor Hancock had access only to results – and not to any individual, identifiable data at any time – Cornell University’s Institutional Review Board concluded that he was not directly engaged in human research and that no review by the Cornell Human Research Protection Program was required.
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